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1440144302212 = 2271153277731769
BaseRepresentation
bin10100111101001111010…
…010100010000010000100
312002200021010120122101201
4110331033102202002010
5142043403420132322
63021332042232244
7206022055410010
oct24751722420204
95080233518351
101440144302212
11505841a06760
121b31394b5684
13a5a60841a55
144d9bc01b540
15276dc64cd27
hex14f4f4a2084

1440144302212 has 96 divisors (see below), whose sum is σ = 3202672193280. Its totient is φ = 550292920320.

The previous prime is 1440144302153. The next prime is 1440144302243. The reversal of 1440144302212 is 2122034410441.

It is a super-2 number, since 2×14401443022122 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45315864 + ... + 45347632.

It is an arithmetic number, because the mean of its divisors is an integer number (33361168680).

Almost surely, 21440144302212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440144302212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1601336096640).

1440144302212 is an abundant number, since it is smaller than the sum of its proper divisors (1762527891068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1440144302212 is a wasteful number, since it uses less digits than its factorization.

1440144302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34621 (or 34619 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1440144302212 its reverse (2122034410441), we get a palindrome (3562178712653).

The spelling of 1440144302212 in words is "one trillion, four hundred forty billion, one hundred forty-four million, three hundred two thousand, two hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 53 77 106 154 212 308 371 583 742 1166 1484 2332 2777 4081 5554 8162 11108 16324 19439 30547 31769 38878 61094 63538 77756 122188 127076 147181 213829 222383 294362 349459 427658 444766 588724 698918 855316 889532 1030267 1397836 1618991 1683757 2060534 2446213 3237982 3367514 4121068 4892426 6475964 6735028 9784852 11332937 11786299 18521327 22665874 23572598 37042654 45331748 47145196 74085308 88222513 129649289 176445026 259298578 352890052 518597156 617557591 970447643 1235115182 1940895286 2470230364 3881790572 4675793189 6793133501 9351586378 13586267002 18703172756 27172534004 32730552323 51433725079 65461104646 102867450158 130922209292 205734900316 360036075553 720072151106 1440144302212